Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754191Ab3IFOZ5 (ORCPT ); Fri, 6 Sep 2013 10:25:57 -0400 Received: from mga02.intel.com ([134.134.136.20]:25213 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754031Ab3IFOZy (ORCPT ); Fri, 6 Sep 2013 10:25:54 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.90,854,1371106800"; d="scan'208";a="374430095" From: Lan Tianyu To: tianyu.lan@intel.com, lenb@kernel.org, rjw@sisk.pl, yinghai@kernel.org, bhelgaas@google.com, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 2/4] ACPI/Resource: Add address translation support Date: Fri, 6 Sep 2013 10:24:44 -0400 Message-Id: <1378477486-8758-3-git-send-email-tianyu.lan@intel.com> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1378477486-8758-1-git-send-email-tianyu.lan@intel.com> References: <1378477486-8758-1-git-send-email-tianyu.lan@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1405 Lines: 40 According ACPI 5.0 spec Section 19.1.8 "For bridges, translate addresses across the bridge, this is the offset that must be added to the address on the secondary side to obtain the address on the primary side. Non-bridge devices must list 0." This patch is to add address translation offset to the start/end of struct resource in the acpi_dev_resource_address_space(). Further more, non-bridge device's translation_offset should 0. So this change will affect other devices. Signed-off-by: Lan Tianyu --- drivers/acpi/resource.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 929f416..84bc3db 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -192,8 +192,8 @@ bool acpi_dev_resource_address_space(struct acpi_resource *ares, if (ACPI_FAILURE(status)) return true; - res->start = addr.minimum; - res->end = addr.maximum; + res->start = addr.minimum + addr.translation_offset; + res->end = addr.maximum + addr.translation_offset; window = addr.producer_consumer == ACPI_PRODUCER; switch(addr.resource_type) { -- 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/